MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ClamAV and an ML classifier, and exhibits characteristics of a link farm. Multiple heuristics indicate the PDF contains numerous links pointing to external PDF files, many hosted on compromised WordPress sites or disposable domains. The embedded URLs suggest a phishing or malware distribution scheme, where users are lured to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://samtle.net/ckupload/files/bawiporobigogalava.pdf In PDF document text
- http://gdfsztal.com/uploadfile/files/gubunipojapekaninuwowizu.pdfIn PDF document text
- https://borgopitti.it/userfiles/file/56018419804.pdfIn PDF document text
- http://rockefellersgold.hu/editor_up/85436870077.pdfIn PDF document text
- https://jackyrouxmethode.com/userfiles/file/50451607373.pdfIn PDF document text
- http://dar-tom.pl/userfiles/file/wufotaka.pdfIn PDF document text
- https://zivotzaokny.eu/res/file/29492150209.pdfIn PDF document text
- http://caphegiabao.com/upload/fck/file/ravevunumopegidesagaxekul.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16134303d8a92d---regilamopujekefikobepib.pdfIn PDF document text
- http://kronospan-mofa.hu/editor_up/dalajukema.pdfIn PDF document text
- http://cgpreceptor.com/ckfinder/userfiles/files/72819769449.pdfIn PDF document text
- https://ikansambel.com/contents/files/12178515409.pdfIn PDF document text
- http://xn--or3bi2da319p.com/upload/fckeditor/file/jefimisuvinirolula.pdfIn PDF document text
- http://myphamhelios.vn/luutru/files/lezutojobudupiz.pdfIn PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130534c80331---19615459436.pdfIn PDF document text
- http://www.mariabeckmann.com/fotos/uploads/files/gomenifamagomuje.pdfIn PDF document text
- https://bunianco.com/other_files/File/biwugukuvilalenanavabuva.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613eb8dbec108---gesesekibabirup.pdfIn PDF document text
- http://www.nachtruhe.info/up/files/40652088520.pdfIn PDF document text
- http://oreoltour.ru/sites/default/files/file/99894504062.pdfIn PDF document text
- http://lakesnwoodskerala.com/uploads/file/xajorikar.pdfIn PDF document text
- http://theclubburger.com/uploads/files/98480618313.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=ea3+audio+format+mx+playerPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d5f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5F1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ee08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE08 | 10860 bytes |
SHA-256: 6d132bcb06bf0aa08c98a07fcdad7f2f66e5a41aa65394028b0cbffc0a8f956a |
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font_02_sfnt_off00010727.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10727 | 18480 bytes |
SHA-256: 2943b198d9e617613e42b242c9632cffa1ff47a0830e585d97c88d06286ab8e7 |
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